Seal and tubular inlet for cans and other receptacles.



PATENTED DEC. 12, 1905.

H. A. TRUESDALE.

SEAL AND TUBULAR INLET FOR CANS AND OTHER REOEPTAOLES.

APPLIOATION FILED SEPT. 2. 1903.

UNITED STATES PATENT oiinorj.v

HARRY A. TRUESDALE, OF CONNEAUT, OHIO, ASSIGNOR TO- OONNEAUT canCOMPANY, OF 'CONNEAUT, HIO, A CGRPORATION OF OHIO. I

SEAL AND TUBULAR lNLET F'oR cANs AND OTHER RECEPTACLES.

Specification of Letters Patent. Application filed September 2, 1903.Serial No. 171,707-

Patented-Dec. 12, 1905.

To all whom it may concern.-

Be it known that I, HARRY A. TRUESDALE,

' a citizen of the United States, residing at Conneaut, in the county ofAshtabula and State of Ohio, have invented certain new and useful Imrovements in Seals and Tubular Inlets for a'ns and other Receptacles;and I do hereby declare the following to be a full,

clear, and exact description of the invention, such as will enableothers skilled in the art to I which it appertains to make and use theneck, the last-name same.

This invention relates to metallic seals for the tubular screwnecks orinlets of cans; and it consists in the construction and combination ofarts hereinafter more particularly set fort andclaimed. V

In the accompanying drawings, Figure 1 represents a side view of'ascrew-neck for a canand a seal embodyingmy invention with a tool in theact of applyingbthe seal to said part eing in central vertical section,the other parts in side elevation. Figs. 2, 3, and 4 represent,respectively, detail pers ective views of the screw-neck, the seal, andt e cover, a small part of the top of the canbeing shown with t efirst-named in Fig. 2 and a part of the peripheral wall of the sealbeing broken awa ig. 3.

A designates the tu ular screw-neck, having an upwardly and inwardlytapered annular bearing A in its'upper part to receive thecorrespondingly-formed tapering circular peri hery of the body B of thecap or seal B, which ploses the said screw-neck. The said seal hasacentral inner recess B, corresponding to the said body B and caused bystriking up the latter. The exterior of the said screwneck has acircularhead or hollow wire a formed thereon, and the upper part of the saidseal or cap'has an annular ange b overlapping the said bead or wire andadapted to be pinched in or bent or curved under the same protectivecover while the seal or cap B is in place or as a temporary alternativeclosure when said cap or seal is absent.

The above-described construction of seal and screw-neck insures a verysecure lock between the parts, while attalmn all the ad- 6o vantages ofa tapered joint, -w ich will of course tighten as'the seal is pressedinto its seat in the neck, The seal is'of one iece of metal orequivalent substance havln the necessary degree of flexibility and stiness. 6,5

' It mustof course be sufficiently Stifi to permanentlyretai'n ltS'shape against gaseous pressure or any normal accidental pressure, yetsuificiently flexible to yield to a tool applied at its edgebynormalforce, as described, v I

Of course the seal may be applied in this way to an tubular part rovidewith the necessary ead or outwar 1 turned rim and bear-' ing and.adapted to t' the said seal. The screws of the screw-neck have nofunction in combination with the said seal and may be dispensed with,but are here retained in descrlption andillustration because of theircommon use as outlets and inlets for cans and similar receptacles; Sincethe lock be- -tween the partsls altogether external, there is no riskofscratching either of the bearingsurfaces by rojections. Furthermore theexternal locking parts are easily accessible for unlocking at will.

When the annular flange or downwardlyextendin outer part b of the cap ispinched in, as be ore stated, by the tool above mentioned, whether atone point or more than one point of its periphery, it will necessarilyat' such point or oints of pinching be curved or bent against t e neckof the can and under thebead of the said neck, closely enga ing the 7same and locking the cap thereto. 11 rac-.- tice this pinching orcrimping is usual y effected at several points, although one suchimpression will often suffice as a lock, or, if preferred, the tool maybe shifted but very slightly from point to point, making-the impressionspracticall continuous, though said tool is not adapted nor intended toroll a continuous-edge under the head of the neck. Neither soldering norcement is needed to lock the cap and the pan-neck, which two artsconstitute the closure of the can ;-but a ittle cement is placed as afillin' or packing only in the annular groove of t e cap formed by thebendof the upwardly and downwardly extending portion ending in theflange thus impressed. This cement is solidified before the cap isapplied and fits onthe bead or rim of the neck, cooperating with the fitof the tapered body of the cap against the inner' face of the neck andwith the fit of the flange of the ca against the bead or rim to makeaperfect uid-tight seal when ut in its place y hand before any tool haseen applied or any impression made. The cap is, indeed,

com lete as aseal without any im resslon or ben ing of its flange ordownwar y-extendouter part'and is often thus used, the

or y objection being the risk of dislodgment,

as 1t holds its place by friction only.- The application of the tool bypinching in the flange under the bead at intervals providesthe desiredmeans of ositive locking.

Having thus descri ed my invent1on,what

I claim as new, and desire ters Patent, is' i 1. A can-top havin aneckof less diameter than the said top an provided with anupwardly-extending flange, the upper portion of which is curved over to,form a bead with the free edge against the saidflange, in combinationwltha cap having an upwardly-exto secure by Let tend-ing portionengaging the inner side of said flange and a downwardly-extendin portionsurrounding the said bead, the e ge of wardlyextending fportion beingbent inwardly a ainst the ange and closely enga in said ead whereby saidcap is secure y j olned without soldering.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

HARRY A. TRUESDALE.

'Witnesses: i

W. P. SANFORD, JAMES R. STOFFER.

